diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index fe2513be9b06..a1b3154ae124 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -2,5 +2,5 @@
 # SPDX-License-Identifier: Apache-2.0 OR MIT
 
 [toolchain]
-channel = "nightly-2023-12-20"
+channel = "nightly-2023-12-21"
 components = ["llvm-tools-preview", "rustc-dev", "rust-src", "rustfmt"]